The 300 ml / 10 oz team player is a double wall vacuum insulated cup made with pro-grade 18/8 stainless steel. It features a durable and premium matte powder coated finish with a screw-on spill resistant lid made from bpa-free eastman tritantm copolyester. When in use, the flip-top closure, fitted with a silicone gasket, locks in place on the opposite side of the drinking spout. Its wide mouth design makes it ice cube friendly and easy to clean. Take advantage of the team players mix & match capabilities! Select from 10 different lid colors and silicone accent bands and dial in that personality.